Keeps the specified variables and clears the rest. Allows the use of the wildcard *...


Updated 12 Jan 2004

No License

This is another modified version of the original KEEP M-file by Xiaoning (David) Yang (1998). It allows the user to specify some variables and clear the rest, and uses the same syntax as the clear command. The main contribution of this code is that it allows the use of the wildcard * in exactly the same fashion as the clear command.

keep3 var1 var2
Clears all variables expect var1 and var2

keep3 va*2
Clears all variables expect those whose names begin with 'va' and end with '2'.

Requires Matlab 6.5 (R13) because it makes use of the regexp command.

Cite As

Martin Barugel (2023). KEEP3 (, MATLAB Central File Exchange. Retrieved .

MATLAB Release Compatibility
Created with R13
Compatible with any release
Platform Compatibility
Windows macOS Linux

Inspired by: keep

Inspired: Keep4

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Version Published Release Notes

Fixed a bug that caused KEEP3 to clear all variables when there where no variables to clear. It now works just fine.